OBJECT J, 49403

Orbit data source: Space-Track

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Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.

OBJECT J, 49403 is a satellite owned by Aoyama Gakuin (JP) in SSO that was launched on Tue, 09 Nov 2021 UTC via an EPSILON launch vehicle from the Kagoshima Space Center University Of Tokyo (KSCUT). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.

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<iframe src="https://www.satcat.com/sats-embedded/49403?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/49403?theme=dark&initialShowStats=false

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Identifier

49403, 2021-102J

Orbit

SSO

Country

JP / JPN

Related business

Aoyama Gakuin University (JP)

Manufacturer

Aoyama Gakuin

Mission

Non-operational Amateur Astronomy

Bus & Motor

CUBESAT 1U, Unknown motor

Mass

1 kg wet, 1 kg dry

Launch date (UTC)

2021-11-09 (4 years ago)

Launch vehicle

EPSILON

Launch site

Kagoshima Space Center University Of Tokyo (KSCUT)

Object type

Unknown

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.015 m², Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 OBJECT J
1 49403U 21102J   26095.14659355  .00117043  00000-0  10922-2 0  9998
2 49403  97.3097 157.6666 0004725  49.8121 310.3553 15.66936254244161

Epoch: 2026-04-05T03:31Z

TLE epoch observation values (Epoch: 2026-04-05T03:31:05.682Z)

Latitude

-0.00001°

Longitude

-88.56327°

Altitude

368.769 km

Speed

7.689 km/s

True Right ascension

10h 30m 39s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

19:26:40

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

367.761 km

Perigee altitude

361.389 km

Semi-major axis

6,742.712 km

Eccentricity

0.00047

Inclination

97.3097°

RAAN

157.6666°

Arg. of periapsis

49.8121°

True anomaly

310.31402°

Mean anomaly

310.3553°

Eccentric anomaly

310.33466°

Mean motion

3.92005 °/min

Orbital period

91.84 mins

BSTAR

0.0010922

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Other satellites on launch #102 in the year 2021 (2021-11-09 UTC)

OBJECT K, 49404

TEIKYOSAT-4 (OORURI), 49396

EPSILON R/B, 49405 (Decayed)

DRUMS TARGET-2, 58954 (Decayed)

DRUMS TARGET-1, 55685 (Decayed)

ASTERISC, 49395 (Decayed)

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OBJECT J Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
4 mins	2026-04-05 16:20:40.648Z	49.071° ENE	2026-04-05 16:22:40.648Z	95.919° ESE	18.415°	2026-04-05 16:24:40.648Z	142.935° SSE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out OBJECT J, 49403 on other resources

View OBJECT J, 49403 on Heavens-Above

View OBJECT J, 49403 on Keep Track

View OBJECT J, 49403 on Celestrak

View OBJECT J, 49403 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

OBJECT J, 49403

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-04-05T03:31:05.682Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #102 in the year 2021 (2021-11-09 UTC)

OBJECT J Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT J, 49403 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago